KR101724406B1 - Backlight assembly and display apparatus having the same - Google Patents

Abstract

The display device includes a light guide plate, a light source unit, a display panel, a storage container, and a drive unit. The light guide plate has at least one corner portion that is chamfered, and guides the light provided toward the light-entering surface side defined by being chamfered. The light source unit generates the light, and is disposed adjacent to the light incidence surface. Further, the display panel receives the light to display an image, and the storage container houses the light guide plate and the light source unit. The driving unit includes a driving unit electrically connected to the display panel to provide a driving signal to the display panel, and a driving unit electrically connected to the light source unit to supply power to the light source unit. Meanwhile, the light guide plate has a first side connected to the light incidence surface, and a part of the first side surface having the same width as the thickness of the light guide plate is removed to a depth, so that a coupling groove is formed in the light guide plate.

Description

BACKLIGHT ASSEMBLY AND DISPLAY APPARATUS HAVING THE SAME Technical Field [1] The present invention relates to a backlight assembly,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backlight assembly and a display device having the backlight assembly. More particularly, the present invention relates to a backlight assembly having a reduced manufacturing cost and a reduced volume, and a display device having the same.

Recently, a backlight assembly having a light emitting diode as a light source and a display device having the backlight assembly have been developed. A backlight assembly having a light emitting diode consumes less power and is easier to reduce volume than a backlight assembly having a cold cathode fluorescent lamp, and can also generate light with high brightness. However, if the backlight assembly has a light emitting diode as a light source instead of a cold cathode fluorescent lamp, the manufacturing cost of the backlight assembly can be further increased.

It is an object of the present invention to provide a backlight assembly with reduced manufacturing cost and a reduced volume, and a display device having the backlight assembly.

In order to achieve the above object, the backlight assembly according to the present invention includes a light guide plate and a light source unit.

The light guide plate has at least one corner portion that is chamfered, and the light guide plate guides light provided to the light-entering surface side defined by being chamfered. Further, the light source unit generates the light, and the light source unit is disposed adjacent to the light incidence surface.

The light guide plate has a first side surface connected to the light incidence surface, and a part of the first side surface having the same width as the thickness of the light guide plate is removed to a depth to form a fastening groove in the light guide plate.

According to an aspect of the present invention, there is provided a display device including a light guide plate, a light source unit, a display panel, a storage container, and a driving unit.

The light guide plate has at least one corner portion that is chamfered, and the light guide plate guides light provided to the light-entering surface side defined by being chamfered. The light source unit generates the light, and the light source unit is disposed adjacent to the light incidence surface.

The display panel receives the light to display an image, and the storage container has a bottom portion and side walls extending from the bottom portion to house the light guide plate and the light source unit. The driving unit is electrically connected to the display panel to provide a driving signal to the display panel, and the driving unit is electrically connected to the light source unit to supply power to the light source unit.

The light guide plate has a first side surface connected to the light incidence surface, and a part of the first side surface having the same width as the thickness of the light guide plate is removed to a depth to form a fastening groove in the light guide plate.

The light guide plate has a surface defined by being chamfered with a corner portion as a light incidence surface, and the light source provides light toward the light incidence surface side. Therefore, according to the present invention, the number of light sources can be reduced as compared with the edge type backlight assembly having a light source disposed along the side of the light guide plate, so that the manufacturing cost of the backlight assembly can be reduced. In addition, the wiring structure for providing power to the light source side can be simplified according to the structure of the light guide plate and the light source, so that the manufacturing cost of the backlight assembly can be further reduced.

1A is a plan view of a backlight assembly according to an embodiment of the invention.
1B is a cross-sectional view showing a portion cut along the line I-I 'shown in FIG.
FIG. 2 is an enlarged view of the first area shown in FIG. 1. FIG.
3 is a top view of a backlight assembly according to another embodiment of the present invention.
4A is a top view of a backlight assembly according to another embodiment of the present invention.
4B is a cross-sectional view showing a portion taken along the line II-II 'shown in FIG. 4A.
5A is a plan view of a display device according to another embodiment of the present invention.
5B is a cross-sectional view showing the cut-out portion III-III 'shown in FIG. 5A.
6 is a plan view of a display device according to another embodiment of the present invention.
7 is a plan view of a display device according to another embodiment of the present invention.
8 is a cross-sectional view showing a portion taken along the line IV-IV 'shown in FIG.
9A is a plan view of the light guide plate, the first light source unit and the second light source unit shown in FIG. 1A.
FIG. 9B is a partial perspective view of FIG. 9A. FIG.
10 is a partial perspective view of the light guide plate and the first light source unit shown in FIG.
11 is a partial perspective view of a light guide plate and a first light source unit according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings. It is to be understood, however, that the present invention is not limited to the embodiments described herein, but may be modified in various forms. Rather, the embodiments described below are provided so that the technical idea disclosed by the present invention will be more clearly understood and the technical idea of the present invention will be fully conveyed to those skilled in the art having the average knowledge in the field of the present invention. Therefore, the scope of the present invention should not be construed as being limited by the above-described embodiments. In the meantime, the drawings presented in conjunction with the following embodiments are somewhat simplified or exaggerated for clarity, and like reference numerals in the drawings denote like elements.

FIG. 1A is a plan view of a backlight assembly according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view illustrating a portion taken along line I-I 'shown in FIG.

1A and 1B, a backlight assembly 100 includes a light guide plate 30, a first light source unit 10, a second light source unit 20, a storage container 50, a reflection plate 65, 60 and optical sheets 70 as shown in FIG.

The light guide plate 30 receives light from each of the first and second light source units 10 and 20 and guides the light in a predetermined direction. For example, in the case where the backlight assembly 100 is used as a light source of a liquid crystal display having a liquid crystal display panel, the light guide plate 30 is provided with light from the first and second light source units 10, And guided to the liquid crystal display panel side.

According to the embodiment of the present invention shown in FIGS. 1A and 1B, the light guide plate 30 has two chamfered corners, and the chamfered first light incidence surface 32 and the second light incidence surface (35). More specifically, the light guide plate 30 includes a first side surface E1, a fourth side surface E4 facing the first side surface E1, a first side surface E1 and a fourth side surface E4, And a third side surface (E3) facing the second side surface (E2), wherein the first light incidence surface (32) has a first side surface (E1) and a second side surface And the second light incidence surface 35 is defined by chamfering the corner portions where the third side surface E3 and the fourth side surface E4 meet.

The first light source unit 10 is accommodated in the storage container 50 to generate light and the light emitted from the first light source unit 10 is incident on the light guide plate 30).

The first light source unit (10) includes a first light source (16), a first flexible printed circuit film (12), and a first connector (14). The first light source 16 has a light emitting surface 18 facing the first light incidence surface 32 and parallel to the first light incidence surface 32. 1A and 1B, the first light source 16 may be a light emitting diode (LED), and the first light source 16 may be provided in plurality .

The first flexible printed circuit film 12 is electrically connected to the first light source 16 and a power supply unit (not shown) to transmit power from the power supply unit to the first light source 16. One end of the first flexible printed circuit film 12 is located under the light guide plate 30 and the other end of the first flexible printed circuit film 12 is connected to an outgoing groove (Not shown).

The first connector 14 is engaged with the end of the first flexible printed circuit film 12 drawn out to the outside so that the first connector 14 can be connected to the first flexible printed circuit film 12 without soldering, The circuit film 12 can be easily electrically connected to the power supply unit.

The second light source unit 20 is accommodated in the storage container 50 to generate light and the light emitted from the second light source unit 20 passes through the second light incidence surface 35 to the light guide plate 30).

The second light source unit 20 includes a second light source 26, a second flexible printed circuit film 22, and a second connector 24. The second light source 26, the second flexible printed circuit film 22 and the second connector 24 are formed by the first light source 16, the first flexible printed circuit film 12, 1 connector 14 and has the same structure, detailed description of constituent elements of the second light source unit 20 is omitted.

The storage container 50 includes a bottom portion 42 and a plurality of side walls 43 extending from the bottom portion 42 to guide the first and second light source units 10 and 20 and the light guide plate 30). The storage container 50 may further include a guide portion 41 extending from an upper portion of at least one of the side walls 43. The light guide plate 30 may be inserted into the lower portion of the guide portion 41, So that it can be stored more stably in the storage container 50.

The reflection plate 65 is provided between the bottom portion 42 and the light guide plate 30 so as to include light reflecting material such as polyethylene terephthalate (PET) or aluminum. Therefore, the light traveling from the first light source 16 to the bottom portion 42 can be reflected by the reflection plate 65 and can be supplied to the light guide plate 30, The amount can be increased.

The back cover 60 has a shape that is bent many times in a 'C' shape so as to surround the first light source 16. The back cover 60 is formed of a material that reflects light and increases the amount of light provided to the light guide plate 30, like the reflection plate 65.

The optical sheets (70) are disposed on the light guide plate (30). The optical sheets 70 may include at least one prism sheet for collecting light emitted from the light guide plate 30 to improve the front luminance and at least one diffusion sheet for diffusing the light.

1A and 1B, the backlight assembly 100 is provided between the light guide plate 30 and the optical sheets 70, and is disposed between the light guide plate 30 and the light guide plate 30, And a diffusion plate for diffusing light.

The first side surface E1 of the sidewalls 43 is partially removed to form a first user hole 51 and the fourth side surface E4 of the sidewalls 43 The side wall is partially removed to form the second user hole 52. [ 5A, when the backlight assembly 100 is used as a light source of a liquid crystal display (200 of FIG. 5A), the first and second user holes 51, (180 in FIG. 5A) and the accommodating container 50 are inserted, thereby separating the engaging member from the light guide plate 30. As a result, (30) can be prevented from being broken. A more detailed description of the structure of the first and second user holes 51 and 52 and the structure of the light guide plate 30 according to the structures of the first and second user holes 51 and 52 will be given later Will be described in more detail with reference to FIG.

Fig. 2 is an enlarged view of the first area (A1 in Fig. 1) shown in Fig. 1. Fig.

2, the light-emitting surface 18 of the first light source 16 faces the first light incidence surface 32 of the light guide plate 30 and the third light incidence surface E3 of the light- And the acute angle [theta] 1 of the angle formed by the first light incidence surface 32 is about 30 degrees to 60 degrees. Although not shown in FIG. 2, the acute angle formed between the light-incoming surface of the second light source (26 in FIG. 1A) and the third side surface E3 in the plane is about 30 to 60 degrees.

The reason why the acute angle? 1 is about 30 to 60 degrees is as follows. In general, when the first light source 16 is a light emitting diode, a radiation angle that advances from the first light emitting surface 18 to the air layer on a plane is substantially equal to a vertical direction of the first light emitting surface 18 And has a symmetrical shape. More specifically, most of the light emitted from the first light emitting surface 18 is radiated within a range of about +/- 60 degrees about the vertical direction of the first light emitting surface 18. However, the light emitted from the first light emitting surface 18 is provided toward the light guide plate 30. For example, when the light guide plate 30 is made of polymethyl methacrylate having a refractive index of about 1.5, which is larger than the refractive index of the air layer, Methacrylate (PMMA), the radiation angle? 2 traveling from one point on the first light incidence surface 32 to the light guide plate 30 may be approximately ± 42.5 degrees.

2 may be changed according to the refractive index of the light guide plate 30. The light emitted from the first light source 16 is incident on the light guide plate 30 through the first light entrance surface 32, The light-emitting angle of the light provided to the light-incident side can be limited within a specific range. Therefore, it is important to adjust the size of the acute angle? 1 so that the light provided to the light guide plate 30 through the first light incidence surface 32 is uniformly distributed over the entire area of the light guide plate 30. Therefore, as described above, when the acute angle? 1 is adjusted to about 30 to 60 degrees, light emitted from each of the first light source unit 10 and the second light source unit 20 Can be uniformly provided over the entire area of the light guide plate 30.

A part of the light guide plate 30 is removed corresponding to the position of the first user hole 51 to form a coupling groove 61a in the light guide plate 30. [ As a result, when the storage container (50 of FIG. 5A) and the cover member (180 of FIG. 5A) are engaged by the screw (111 of FIG. 5A) accommodated in the first user hole 51, It is possible to prevent the light guide plate 30 from being damaged by the contact with the light guide plate 30. The structure of the engaging groove 61a will be described in more detail with reference to Figs. 9A and 9B.

FIG. 9A is a plan view of the light guide plate, the first light source unit and the second light source unit shown in FIG. 1A, and FIG. 9B is a partial perspective view of FIG. 9A. More specifically, the first side E1 of the light guide plate 30 is mainly shown in Fig. 9B, and the back side of the light guide plate 30 is shown in Fig. 9B, unlike that shown in Fig. 9A. Since the structure of the second side face E2 of the light guide plate 30 is similar to that of the first side face E1 in the description of this embodiment, Is omitted.

9A and 9B, the light guide plate 30 has a first side E1 connected to the first light incidence surface 32 in parallel with the second direction D2. A portion of the first side surface E1 having the same width W as the thickness of the light guide plate 30 is formed in a depth D in a first direction D1 perpendicular to the second direction D2, As a result, a coupling groove 61a is formed in the light guide plate 30.

The surfaces defining the fastening groove 61a by cutting the first side surface E1 will now be described in more detail. The coupling groove 61a is defined by an inner side surface 62 and a bottom surface 63 connected to the inner side surface 62. The inner surface 62 and the bottom surface 63 are spaced apart from the first side E1 and in the embodiment of the present invention shown in Figure 9b the bottom surface 63 is in the second direction D2 , And the inner surface 62 is inclined with respect to the first direction D1 and the second direction D2.

The bottom surface 63 is connected to the inner side surface 62 and extends in the second direction D2 to be in contact with the second side surface E2. That is, the coupling groove 61a is spaced apart from the first light incidence surface 32 at the first side E1 and extends to the second side E2.

3 is a top view of a backlight assembly according to another embodiment of the present invention. Except for the structure of the coupling groove 61b of the light guide plate 30, the backlight assembly shown in FIG. 3 has the same structure as the backlight assembly illustrated in FIGS. 1A, 1B, 2, 9A, and 9B Referring to FIG. 3, the components described in the previous embodiments are denoted by the same reference numerals, and redundant description of the components is omitted.

1A and 3, the coupling groove 61b is defined by cutting the light guide plate 30 corresponding to the position of the first user hole 51, and the surfaces defining the coupling groove 61b are defined by 2 (61a in Fig. 2). The surfaces defining the fastening groove 61b are described in more detail with reference to FIG.

10 is a partial perspective view of the light guide plate and the first light source unit shown in FIG. More specifically, in FIG. 10, the first side face E1 of the light guide plate 30 is mainly shown, and unlike the case shown in FIG. 3, the back face of the light guide plate 30 is shown in FIG.

10, a portion of the first side face E1 of the light guide plate 30 having the same width as the thickness of the light guide plate 30, as in the engagement groove (61a in FIG. 9) So that the coupling groove 61b is formed in the light guide plate 30. However, the surfaces defining the engaging groove 61b are different from the surfaces defining the engaging groove 61a shown in Fig. 9 (61a in Fig. 9). The surfaces defining the fastening groove 61b will now be described in more detail.

The fastening groove 61b includes a first inner side surface 65, a second inner side surface 66 facing the first inner side surface 65, and a second inner side surface 66 facing the first inner side surface 65 and the second inner side surface 65 66 which are connected to the bottom surface 63. The bottom surface 63 is parallel to the second direction D2 and each of the first inner side surface 65 and the second inner side surface 66 has a first direction D1 that is perpendicular to the second direction D2 ). 9B, the bottom surface 63 is connected to the second inner side surface 66 and is not in contact with the second side surface E2.

Meanwhile, in another embodiment of the present invention, the first inner side surface 65 and the second inner side surface 66 may not be perpendicular to the bottom surface 63, as shown in FIG. For example, FIG. 11 is a partial perspective view of the light guide plate 30 and the first light source unit 10 according to another embodiment of the present invention. Referring to FIG. 11, the fastening groove 61c includes a bottom surface 63, Wherein the first inner surface (62) and the second inner surface (64) are defined by an inner side surface (62) and a second inner side surface (64) ).

4A is a plan view of a backlight assembly according to another embodiment of the present invention, and FIG. 4B is a cross-sectional view illustrating a portion taken along II-II 'shown in FIG. 4A. 4A and 4B, except for the structure of the first light incidence surface 33, the backlight assembly according to the embodiment of the present invention includes the backlight assembly described with reference to FIGS. 1A, 1B, . 4A and 4B, the description related to the other components other than the first light incidence surface 33 is omitted.

Referring to FIGS. 4A and 4B, the first light incidence surface 33 has a plurality of protrusions 38 projecting from the first light incidence surface 33. The plurality of protrusions 38 diffuse the light emitted from the light emitting surface 18 and provided to the light guide plate 30 through the first light incident surface 33. Therefore, 2 of < / RTI > 2). As a result, the amount of light provided to the light guide plate 30 over the entire area of the light guide plate 30 can be made more uniform by the plurality of projections 38.

4A and 4B, the spacing L1 between two adjacent protrusions may be about 160 micrometers, and the plurality of protrusions 38 may be about 360 micrometers And may be formed on the first light incidence surface 33 at a pitch L2. The projection height L3 of each of the plurality of projections 38 protruding from the first light incidence surface 33 may be about 100 micrometers and the length L4 of each of the plurality of projections 38 ) May be about 200 micrometers.

On the other hand, the size of the pitch L2 may be adjusted to 200 micrometers to 600 micrometers depending on the structure of other components, for example, the size of the first light incidence surface 33 or the light emission surface 18. [ In addition, when the pitch L2 is adjusted, the distance L1 and the height L3 may be adjusted corresponding to the pitch L2.

5A is a plan view of a display device according to another embodiment of the present invention. 5B is a cross-sectional view showing the cut-out portion III-III 'shown in FIG. 5A. On the other hand, the display device 200 shown in Figs. 5A and 5B has the backlight assembly 200 described with reference to Figs. 1A, 1B and 2 as constituent elements. 5A and 5B, a detailed description of the backlight assembly 200 will be omitted.

5A and 5B, the display device 200 includes a backlight assembly 100, a display panel 120, and a driver 140. In this embodiment, the display device 200 may be a liquid crystal display device, and the display panel 120 may be a liquid crystal display panel that displays light by receiving light from the backlight assembly 100.

The display panel 120 includes a first substrate 121, a second substrate 122 facing the first substrate 121, and a second substrate 122 interposed between the first substrate 121 and the second substrate 122. [ (Not shown).

The first substrate 121 may include a plurality of pixel electrodes (not shown) and a plurality of thin film transistors electrically connected to the pixel electrodes in a one-to-one correspondence. Each thin film transistor switches a driving signal provided to each pixel electrode side, and when the thin film transistor is turned on, the pixel electrode receives a data signal provided from the data driver. The second substrate 122 may include color filter layers disposed in a one-to-one correspondence with the pixel electrodes, and an opposing electrode that forms an electric field for controlling the arrangement of the liquid crystals together with the pixel electrodes.

The driving unit 140 is electrically connected to an input pad unit (not shown) of the display panel 120 by first and second tape carrier packages 130 and 135. The driving unit 140 generates a driving signal for driving the display panel 120 and provides the driving signal to the display panel 120 through the first and second tape carrier packages 130 and 135.

The driving unit 140 provides power to the first light source 16 and the second light source 26 to be used for the first light source 16 and the second light source 26 to emit light. More specifically, the first connector (14 of FIG. 1A) electrically connected to the first flexible printed circuit film 12 is coupled to the first power output unit 150 of the driving unit 140, The light source 16 may be supplied with power from the first power output unit 150. A second connector (24 in FIG. 1A) electrically connected to the second flexible printed circuit film 22 is connected to the second power output unit 155 of the driving unit 140 and is connected to the second light source 26, May be supplied with power from the second power output unit 155. [

The display device 200 further includes a cover member 180. The cover member 180 covers the display panel 120 to expose a region where the image is displayed, Lt; / RTI > More specifically, the first and second screws 111 and 112 are inserted into the first and second user holes 51 and 52 in a one-to-one correspondence with the first and second user holes 51 and 52 described with reference to FIGS. 1A, 1B, The engaging member 180 and the storage container 50 are fastened.

6 is a plan view of a display device according to another embodiment of the present invention. 6, except for the manner in which the first and second flexible printed circuit films 12 and 22 are electrically connected to the driving unit 140, The display device has the same structure as the display device shown in Figs. 5A and 5B. Therefore, in describing FIG. 6, the components described in FIGS. 5A and 5B are referred to by the same reference numerals, and redundant description of the components is omitted.

Referring to Fig. 6, at one end of the first flexible printed circuit film 12 drawn out of the storage container 50, a terminal is provided in place of the first connector 14 shown in Fig. 1A And is soldered to the first power output unit 150 of the driving unit 140. As a result, the first light source 16 can emit light by being supplied with power from the first power source output unit 150.

A terminal is formed at one end of the second flexible printed circuit film 22 drawn out of the storage container 50 instead of the second connector 24 shown in Fig. And is soldered to the second power output unit 151 of the driving unit 140. As a result, the second light source 26 can emit light by being supplied with power from the second power output unit 155.

FIG. 7 is a plan view of a display device according to another embodiment of the present invention, and FIG. 8 is a cross-sectional view illustrating a portion taken along IV-IV 'shown in FIG. 7 and 8, except for the manner in which the first light source 16 and the second light source 26 are electrically connected to the driving unit 140, according to the embodiment of the present invention shown in FIGS. 7 and 8, Has the same structure as the display device shown in Figs. 5A and 5B. Therefore, in describing FIGS. 7 and 8, the components described in FIGS. 5A and 5B are referred to by the same reference numerals, and redundant description of the components is omitted.

Referring to FIG. 7, the first light source 16 and the second light source 26 are arranged in the first and second connectors (14 and 24 in FIG. 1A) and the first and second connectors Is electrically connected to the power output portion 145 of the driver 140 by the lead wires 190 in place of the flexible printed circuit films 12 and 22 in Figs. More specifically, the lead wires 190 include a first lead wire 191, a second lead wire 192, and a third lead wire 193, And the second lead wire 192 electrically connects the first light source 16 and the second light source 26 to each other to electrically connect the first light source 16 and the power output unit 145, The third lead wire 193 electrically connects the second light source 26 and the power output unit 145.

The lead wires 190 are accommodated in the storage container 50. One end of each of the lead wires 190 is drawn out of the storage container 50 and electrically connected to the power output unit 145 Can be connected.

8, a first groove 59A for accommodating the first lead wire 191 and a second groove 59B for accommodating the second lead wire 192 are formed on the side wall of the storage container 50 . Each of the first and second grooves 59A and 59B has an open shape to allow the first and second lead wires 191 and 192 to be easily inserted into the first and second grooves 59A and 59B can do.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. You will understand.

100: backlight assembly 10: first light source unit
20: second light source unit 51: first user hole
52: second user hole 32: first incident surface
35: second incidence surface 50: storage container
30: light guide plate 61a / 61b: fastening groove

Claims (20)

A light guide plate having at least one corner portion chamfered and guiding light provided to the light incident surface side defined by the corner portion;
A light source unit which generates the light and is disposed adjacent to the light incidence surface;
A display panel receiving the light and displaying an image;
A bottom portion and sidewalls bent upward from the bottom portion to house the light guide plate and the light source unit, and a first portion of the first sidewall is removed from the first sidewall extending along a first direction of the sidewalls A storage container in which a user hole is defined;
A cover member covering a part of the display panel and coupled with the side walls; And
And a driving unit electrically connected to the display panel to provide a driving signal to the display panel side and to be electrically connected to the light source unit to supply power to the light source unit,
Wherein the light guide plate has a first side facing the first side wall in a second direction intersecting with the first direction and connected to the light incidence surface, and a portion of the first side having the same width as the thickness of the light guide plate And a fastening groove is formed in the light guide plate,
Wherein the engaging groove is defined at a position corresponding to the user hole,
And a depth of the user hole in the second direction is smaller than a width of the first sidewall in the second direction. 2. The apparatus according to claim 1, wherein the engaging groove is defined by at least one inner side and a bottom surface connected to the inner side, the inner side is spaced apart from the light incidence surface, and the bottom side is parallel to the first side And the display device. The light guide plate according to claim 2, wherein the light guide plate has a second side extending along the second direction and contacting the first side, the bottom surface being in contact with the inner side and the second side, And the side surfaces are connected to each other. 3. The apparatus of claim 2, wherein the inner side has a first inner side and a second inner side, each of the inner side and the second inner side being connected to the bottom side, wherein the first inner side and the second inner side are inclined And the display device. 3. The apparatus of claim 2, wherein the inner side has a first inner side and a second inner side, each of the first inner side and the second inner side being perpendicular to the bottom side And the display device. 3. The light-emitting device according to claim 2, wherein the light incidence surface is provided in plural and includes a first light incidence surface and a second light incidence surface,
The light-
A second side adjacent to one side of the first side;
A third side adjacent to the other side of the first side and facing the second side in the first direction; And
And a fourth side facing the first side in the second direction,
Wherein the first light incidence surface is defined by chamfering a corner portion where the first side surface and the third side surface meet and the second light incidence surface is defined by chamfering a corner portion where the third side surface and the fourth side surface meet, Display device. The display device according to claim 6, wherein a size of an acute angle formed by each of the first light incidence surface and the second light incidence surface and the third side surface in a plane is from 30 degrees to 60 degrees. 7. The light source unit according to claim 6,
At least one light source having a light emitting surface on which the light is generated; And
And a circuit wiring portion electrically connected to the light source and the driving portion,
Wherein the light source unit is provided corresponding to the number of light incidence surfaces. The connector according to claim 8, wherein the circuit wiring portion is a flexible printed circuit film, the flexible printed circuit film is housed in the housing container, a connector provided at one end of the flexible printed circuit film is drawn out,
And the connector is connected to a power output unit of the driving unit. The flexible printed circuit film according to claim 8, wherein the circuit wiring portion is a flexible printed circuit film, the flexible printed circuit film is housed in the storage container, a terminal provided at one end of the flexible printed circuit film is drawn out,
And the terminal is bonded to a power output portion of the driving unit. 9. The display device according to claim 8, wherein the circuit wiring portion is a lead wire, the lead wire is accommodated in the storage container, and one end of the lead wire is drawn out of the storage container and electrically connected to the driving portion Display device. 12. The display device according to claim 11, wherein at least one of the side walls has a groove that is open to the outside to receive the lead wire. The method according to claim 1,
Further comprising a coupling member for coupling the storage container and the cover member,
And the engaging member is accommodated in the user hole and spaced apart from the light guide plate. A light guide plate having at least one corner portion chamfered and guiding light provided to the light incident surface side defined by the corner portion;
A light source unit which generates the light and is disposed adjacent to the light incidence surface; And
A bottom portion and sidewalls bent upward from the bottom portion to receive the light guide plate and the light source unit, and a first portion of the first sidewall is removed from a first sidewall extending along a first direction of the sidewalls A storage container in which a user hole is defined,
Wherein the light guide plate has a first side facing the first side wall in a second direction intersecting with the first direction and connected to the light incidence surface, and a portion of the first side having the same width as the thickness of the light guide plate And a fastening groove is formed in the light guide plate,
Wherein the engaging groove is defined at a position corresponding to the user hole,
Wherein a depth of the user hole in the second direction is smaller than a width of the first side wall in the second direction. 15. The apparatus according to claim 14, wherein the engaging groove is defined by at least one inner side and a bottom side connected to the inner side, the inner side is spaced apart from the light incidence surface, and the bottom side is parallel to the first side The backlight assembly comprising: The light guide plate according to claim 15, wherein the light guide plate has a second side that meets the first side, and the bottom surface contacts the inner side and the second side to connect the inner side and the second side. Backlight assembly. 16. The apparatus of claim 15, wherein the inner side has a first inner side and a second inner side, each of the first inner side and the second inner side being connected to the bottom side, A backlight assembly characterized by a photo. 16. The apparatus of claim 15, wherein the inner side has a first inner side second inner side connected to one another with the bottom side interposed therebetween, wherein the first inner side and the second inner side are perpendicular Wherein the backlight assembly includes a backlight assembly. 16. The light-emitting device according to claim 15, wherein the light incidence surface is provided in plural, and includes a first light incidence surface and a second light incidence surface,
The light-
A second side adjacent to one side of the first side;
A third side adjacent to the other side of the first side and facing the second side in the first direction; And
And a fourth side facing the first side in the second direction,
Wherein the first light incidence surface is defined by chamfering a corner portion where the first side surface and the third side surface meet and the second light incidence surface is defined by chamfering a corner portion where the third side surface and the fourth side surface meet, Backlight assembly. The backlight assembly of claim 19, wherein the acute angle formed by each of the first light incidence surface and the second light incidence surface and the third side surface is in the range of 30 to 60 degrees.

Images